SOLUTION: Alloys A and B are composed of metals X and Y in the ratios 5:3 and 6:7 respectively by weight. How many kg of X must be melted along with 20 kg of alloy A and 65 kg of alloy B so
Algebra.Com
Question 402069: Alloys A and B are composed of metals X and Y in the ratios 5:3 and 6:7 respectively by weight. How many kg of X must be melted along with 20 kg of alloy A and 65 kg of alloy B so as to produce a new alloy containing 60% by weight of X
Answer by robertb(5830) (Show Source): You can put this solution on YOUR website!
==> x + 12.5 + 30 = 0.60x + 12 + 39
==> x + 42.5 = 0.60x + 51
0.40x = 8.5
x = 21.25 kg of alloy X.
RELATED QUESTIONS
Two alloys A and B are composed of two basic elements. The ratios of the components of... (answered by josgarithmetic)
The amount (by weight) of gold, silver and lead in three alloys of these metals are in... (answered by venugopalramana)
The amounts (by weight) of gold, silver, and lead in three alloys of these metals are in... (answered by jrfrunner)
Two kinds of rice costing $6/kg and $10/kg respectively are mixed in a ratio 3:2 by... (answered by TimothyLamb)
Two alloys contain silver and copper in the ratios 3:1 and 5:3 respectively.The alloys... (answered by vasumathi)
A certain alloy is composed of two metals, A and B. How many tons of metal A should be... (answered by ikleyn,josgarithmetic)
It is known that the weights of apples from a farm are normally distributed. In order to... (answered by Boreal)
It is known that the weights of apples from a farm are normally distributed. In order to... (answered by CPhill)
An alloy is made by melting and combining two or more metals. A metalsmith has two... (answered by ikleyn,greenestamps)